I hope you bear with me if I get this wrong, as this is my first visit. I downloaded the Anti-Theft App from the internet onto my Galaxy GT-1900 and I completed the settings, but I never completed the registration and when I went to use my phone the next day, I found that the App had engaged and the message it displayed was as follows, "Device locked because SIM card is missing." I contacted the person I had listed as my "Buddy" and got him to text the word "Unlock" to my phone in the hope this would help, but this was to no avail also. So can anyone help as I'm unable to use my phone while it's in this situation, so your help is needed, please.
Stemar.